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Ammunition & Hand Loading => General Ammunition Discussion => Topic started by: birddogne on March 02, 2012, 03:03:46 PM

Title: BiMetal Ammunition
Post by: birddogne on March 02, 2012, 03:03:46 PM
Interesting story on BiMetal ammunition such as Wolf and Tulammo.

[urlhttp://www.uspsa.org/front-sight-magazine-article.php?Should-I-Buy-BiMetal-Ammo-8][/url]
Title: Re: BiMetal Ammunition
Post by: birddogne on March 02, 2012, 03:09:23 PM
Let's try that again.

http://www.uspsa.org/front-sight-magazine-article.php?Should-I-Buy-BiMetal-Ammo-8 (http://www.uspsa.org/front-sight-magazine-article.php?Should-I-Buy-BiMetal-Ammo-8)
Title: Re: BiMetal Ammunition
Post by: unfy on March 06, 2012, 09:48:22 PM
Last I checked, federal law disallows steel cored handgun rounds (it's classified as anti-personnel).

Cores can't be steel, tungsten, etc.  The jacket can't make up more than 25% of the weight of the bullet.  That kind of thing.  It's okay for rifle ammo, but not pistol.

I think this was around the same time as the bradey bill ?

Title: Re: BiMetal Ammunition
Post by: Ronvandyn on March 09, 2012, 07:07:52 PM
But still, that was an interesting article.  Thanks for posting it.

Ron
Title: Re: BiMetal Ammunition
Post by: bkoenig on March 10, 2012, 10:47:11 PM
One thing the article doesn't mention is the relative hardness of different steel alloys.  Steel jacketed bullets commonly found in Eastern European ammo are made of extremely soft steel.  There is a big difference between a harder steel such as that used for barrels and a mild steel used for bullets.  Even with steel on steel contact the barrel is a lot harder than the bullet, so it's going to take a lot of shooting before you wear the barrel enough to affect accuracy.
Title: Re: BiMetal Ammunition
Post by: Ronvandyn on April 13, 2012, 05:59:00 PM
Quote from: bkoenig on March 10, 2012, 10:47:11 PM
One thing the article doesn't mention is the relative hardness of different steel alloys.  Steel jacketed bullets commonly found in Eastern European ammo are made of extremely soft steel.  There is a big difference between a harder steel such as that used for barrels and a mild steel used for bullets.  Even with steel on steel contact the barrel is a lot harder than the bullet, so it's going to take a lot of shooting before you wear the barrel enough to affect accuracy.

I was kind of curious about that myself.  Seems that just about all the 7.62x39 ammo out there (foreign and cheap stuff) is bi-metal in nature, and having just acquired an SKS the article got me to wondering.  It came with 100 rounds, and doing some research on the subject tells me that reloading for this round is pretty close to unneeded when compared to buying the new and cheap stuff unless one really just loves the very act of reloading their own stuff.  I reload to shoot, I don’t shoot to reload. 

Ron